baber/WOPTO huggingface dataset:
Patent GB-1357872-A (GB)
Title: Vehicle levelling systems
IPC: B60G17/033
Filed: 1973-05-04
Abstract: 1357872 Adjusting suspension height GENERAL MOTORS CORP 4 May 1973 [15 June 1972] 21302/72 Heading B7D [Also in Division F2] In a levelling system for maintaining the longitudinal turn of a vehicle approximately level under varying loads by controlling the rear suspension height, air-tight bellows 30 surrounding the rear suspension springs 36 to form vacuum chambers for imposing a simulated load on the springs are connected either to atmosphere or to the engine intake manifold by a control valve 48 which includes a flexible lever 10 arranged to pinch one or the other of flexible air supply and vacuum conduits 50, 52 in dependence on variations in the rear suspension height. The flexible lever 60 is mounted at one end on a bracket 46 depending from a frame cross-member 14 and is connected at the other end by a link 78 to an upper control arm 80 on the rear axle 16. When the rear axle loading is such that the rear suspension height is below a predetermined value the vacuum conduit 52 is pinched shut and the air supply conduit 50 is open so that the bellows 30 are connected to atmosphere through a filter 58. When the rear axle loading is low and the suspension height high the air supply conduit 50 is pinched shut and the vacuum conduit 52 is open so that the pressure in the bellows 30 is reduced to an extent limited by a vacuum regulating valve 56 connected between the conduit 52 and a conduit 92 leading to the intake manifold. A check valve 98 closes when there is no vacuum at the manifold, and a flexible sleeve 10 is pressed by atmospheric pressure into engagement with valve body 82 around side openings 112, 118 when the vacuum reaches a predetermined maximum level so that the bellows are disconnected from the manifold and maintained at the predetermined vacuum level. In another embodiment, Fig. 4 (not shown), the flexible lever is arranged to pinch only the air supply conduit.
Patent GB-757154-A (GB)
Title: Improvements in or relating to aviation trainers
Inventor: NEISWANDER ROBERT S
IPC: G09B9/16
Filed: 1954-07-21
Abstract: 757,154. Aircrew trainers. LINK AVIATION, Inc. July 21, 1954, No. 21322/54. Class 4. An aircrew trainer includes a fuselage cockpit having a hood 26 lined by a translucent screen 28 adapted to be illuminated to simulate lighting conditions with one or more sources of light disposed on that side of the screen which is remote from the trainee and means not controllable by the trainee for varying the intensity of the sources. In Fig. 3, the portions 26, 28 have angle pieces 32, 37 running around their lower marginal edges, secured relatively by a bracket 56 at the nose and further brackets (not shown) at the rear. A bulkhead 68 encloses the aperture formed at the rear, and further sheets enclose the U- shaped aperture at the bottom of the hood as at 40. The hood is provided with three wheels, enabling it to be pushed fore-and-aft on tracks on the fuselage. On the bulkhead 68 are mounted a plurality of lighting units 72 separated by plates 96. Each unit comprises a bulb 78 and an electric motor 80 driving a shaft 82 at, say, 4 r.p.m., thus rotating disc 86 and opaque fingers 88 around the bulb, cyclically varying the light intensity to simulate the passage of clouds. The translucent screen 28 is fogged, e.g. by black paint, to a greater extent near the units 72 and a lesser extent at the nose so that the illumination is uniform as seen by the trainee. An instructor outside the cockpit can vary the overall intensity from blackness to normal daylight, and can initiate an electrical relay circuit operated by cams in an irregular manner so that the light intensity has irregular high peaks simulating lightning. At the same time, electrical signals from a static generator are fed to the pupil's earphones.
Patent GB-1219723-A (GB)
Title: Screws and methods and apparatus for making them
Inventor: WIEBER GEORGE LOUIS
IPC: B21H3/06
Filed: 1969-04-25
Abstract: 1,219,723. Self-tapping screws. ILLINOIS TOOL WORKS Inc. 25 April, 1969 [25 April, 1968], No. 21335/69. Heading B3N. [Also in Division F2] A self-tapping screw comprises a screwed shank 14, Fig. 1, having a substantially uniform root diameter, a portion 20 of the thread having a substantially uniform crest diameter, and an included flank angle of 60 degrees, whereas the portion 22, has a larger crest diameter, and an included flank angle of 45 degrees. Portion 22 forms a complete thread form, to or within onehalf pitch of the head 12. The blank is formed with two diameters 29, 30 and the thread is rolled on to the shank by a pair of dies having grooves 42 for portion 20, and deeper grooves 44, for portion 22.
Patent GB-275426-A (GB)
Title: Improvements in and relating to lawn tennis racquets and racquets for playing like games
IPC: A63B51/08
Filed: 1926-08-30
Abstract: 275,426. Hill, L. E. Aug. 30, 1926. Rackets.-In a lawn tennis or like racket having mains and cross strings extending at right angles one to the other and a number of strings arranged diagonally thereto, the diagonally - arranged strings c, c<1> are relatively few in number and extend from points adjacent to the shoulders to corresponding points adjacent to the head of the frame and cross one another only in the neigh. bourhood of the central portion of the racket.
Patent GB-203324-A (GB)
Title: Method of separating one or more substances from other substances
IPC: B04B15/02
Filed: 1923-08-23
Abstract: 203,324. Aktiebolaget Separator. Sept. 4, 1922, [Convention date]. Density separators; heating parts.-Oils or fatty substances are separated continuously from a mixture by centrifugation at a temperature at which only the substances to be separated are in a solid state, the separated solids collecting on a heated' part of the container where they melt or become plastic and permit continuous removal. The mixture is fed into a bowl G, Fig. 1, through passages E, D, C and the solids collect in an annular layer H, the outer portion of which is melted by a heating medium supplied through passages F and is discharged through openings K. The heating medium may be composed of the same constituents as the separated solids, and the operation is so regulated that the layer H is kept at a uniform thickness. In a modification, the heating medium transmits heat to the layer H through an annular partition removably or otherwise connected to the bowl. It is advantageous to discharge the heating medium as near to the bowl axis as possible, where this does not create undesirable strain in the partition. The partition may be corrugated or provided with flanges to promote heat conduction. Heat may be supplied by an electric heater inside or outside the bowl, or by electric eddy currents induced in the wall of the bowl. Heat-insulation coverings may be provided.
Patent GB-710831-A (GB)
Title: Improvements in or relating to a roof slab
IPC: E04D3/30
Filed: 1952-08-26
Abstract: 710,831. Roof slabs; roofs. MOORE CORPORATION, L. C. Aug. 26, 1952 [Sept. 6, 1951], No. 21411/52. Classes 20 (4) and 87 (1) A metal roofing unit comprises a corrugated sheet 19 secured to a frame consisting of top and bottom angle members 2, 3 and side mem. bers 4, 5 of upright and inverted V-section respectively. The member 4 forms a gutter which receives the outer portion of the side member 5 of an adjacent unit. To provide waterproof horizontal joints, the gutter is provided with an extension 11 and the corrugated sheet 19 extends beyond the frame member 3. Angle strips 10 are provided to engage under the frame member 3 of an adjacent unit. The units may be secured to the roof structure by hook bolts engaging over rods 12.
Patent GB-202998-A (GB)
Title: Improvements in high frequency telegraphic and telephonic systems
IPC: H04L27/10
Filed: 1923-08-23
Abstract: 202,998. Soc. Franþaise Radio-Electrique. Aug. 24, 1922, [Convention date]. Drawings to Specification. Frequency, changing.-In a high-frequency signalling system in which morse or other code signals are radiated on two wave-lengths, one frequency for marking, the other for spacing, the two frequencies are derived from monophase current by converting it into two-phase components and mechanically rotating an armature in the resulting rotary field. The sum and difference frequencies are then fed to the aerial by the signalling key which reverses the phase of one of the field windings.
Patent GB-614513-A (GB)
Title: Improvements in and relating to tube drawing mandrels
IPC: B21C3/16
Filed: 1946-07-18
Abstract: 614,513. Drawing-mandrels. BRITISH THOMSON-HOUSTON CO., Ltd. July 18, 1946, No. 21486. Convention date, July 19, 1945. [Classes 83 (ii) and 83 (iv)] A tube-drawing mandrel is made by forming a reduced end 2 on a steel shank 1, placing thereon first a hard metal ring 3 and then a steel cap 5 and heating and upsetting the reduced end to secure the ring and cap in position. The ring is of a hard metal composition such as a cemented carbide and its bore is slightly tapered outwardly towards the end of the mandrel. A countersink to receive the displaced metal of the end 2 is formed in the cap 5. After the forging operation by means of a hammer 10, the surplus metal is machined off and the cap exteriorly shaped as shown. The outer end of the ring 3 is bevelled slightly as at 12.
Patent GB-571122-A (GB)
Title: Improved method of brazing metals
IPC: B23K1/012
Filed: 1943-12-23
Abstract: 571,122. Brazing. BRITISH THOMSONHOUSTON CO., Ltd. (General Electric Co.). Doe. 23, 1943, No. 21522. [Classes 83 (ii) and 83 (iv)] In a method of brazing, one of the parts is oxidized and the parts assembled so that the space between them is greater than a capillary opening, brazing metal is then positioned on or adjacent the parts which are then heated in a reducing atmosphere to a temperature high enough to reduce the oxide and melt the brazing metal. It is stated that when the oxide is reduced a spongy surface with capillary openings is produced in which the molten metal flows. The spacing between the surfaces may be about 0.01". A tungsten rod may be brazed in an opening in a nickel body by oxidizing the rod by heating in an oxidizing flame, removing the oxide by brushing from the part not to be brazed and inserting the coated portion in the nickel body. A ring of copper is positioned at the mouth of the opening-and heating effected .in a hydrogen atmosphere to reduce the oxide and melt the copper. Steel may also be similarly brazed with copper as the brazing metal. Steel may be similarly coated with silver and brazed to another metal.
Patent GB-225286-A (GB)
Title: Improvements in or relating to machines for binding the edge of leather or like material
IPC: C14B11/00
Filed: 1923-08-29
Abstract: 225,286. British United Shoe Machinery Co., Ltd., (United Shoe Machinery Cor. poration). Aug. 29, 1923. Tape, affixing.-Relates to machines for folding binding strips upon the edge of sheet material such as leather shoe uppers, and especially applicable to French bindings in which a fabric strip 2, Fig. 1, is sewn to the material 1 at 3 and bent back over the sewing prior to insertion in the machine, which folds the strip 2 around the edges and presses it down on the opposite face of the material 1 where it is held by previously applied adhesive, but also applicable to other bindings such as those described in Specification 176,378, [Class 16, Books &c.], and particularly to modifications of the edge-folding machines described in Specifications 19937/14 and 208,217, [both in Class 42 (i), Fabrics, Finishing &c.], for folding such binding strips. (1) The binding strip is bent round the edge of the material and is then pressed down towards the material by means such as a hammer 5, Fig. 3, which may be yielding and may be the hammer of the machines described in Specifications 19937/14 and 208,217, [both in Class 42 (i), Fabrics, Finishing &c.]. A steel spring 6 or other yielding member with sharp teeth 7 at the edge is mounted on the hammer 5 and, when the latter descends in a slanting dirction towards the work-supporting anvil 8, the teeth 7 penetrate the binding strip and stretch it tightly around the edge of the material. (2) In order to accommodate the ridge formed by folding the binding over, the work-supporting surface and the plough for engaging and turning the binding are separated, as by a groove. The machine described in Specification 19937/14, [Class 42 (i), Fabrics, Finishing &c.], comprising a worksupporting table 13, Fig. 5, a plough 16, a work presser or creaser 12, and a pressing hammer with an over-lying work-feed-assisting spring finger, may be modified by forming a block 11 with a groove 17, as shown, at the foot of the plough surface 16. The creaser 12 is pivoted to the block 11, is urged by a spring 20 to press the binding against the plough, and is raised by a finger piece 21. The block 11 is adjustable in a groove in the table 13 in the direction of the line of feed, and is held in position by a screw pressing through a slot in the block. The machine described in Specification 208,217, [Class 42 (i), Fabrics, Finishing &c.], may be similarly modified by providing a groove 117, Fig. 6, at the join of the plough and work-supporting surface, the groove having a rounded base with one side a continuation of the overhanging face, 116 of the plough. The work presser 112 is mounted on a lever 119 carrying a finger 120 to engage the edge of the material, the lever 119 being pivoted at 118 to the uppper arm of the machine and being depressed by a spring 121 acting against a nut 122 on a screw 123 adjustable on the lever 119.
Patent GB-316015-A (GB)
Title: Improvements relating to the manufacture of oxide-coated cathodes for use in vacuum electric devices
IPC: H01J9/04
Filed: 1928-07-28
Abstract: 316,015. Octron, Ltd., Holt, W., and Stedman, G. H. July 28, 1928. vacuum tubes.-In the manufacture of oxidecoated cathodes for use in vacuum-electric devices, a wire or filament is first coated with a thick suspension of non-soluble salts, such as the carbonates and the oxalates, of the alkaline-earth metals and the coating is then made firmly adherent by the application of a, separate solution of soluble salts, such as the nitrates, of the said metals. In the coating-apparatus shown, the filament 1 is unwound from a spool 2 and is coated with a suspension by means of a grooved wheel 4 which rotates in the direction indicated. The coating is dried without undue decomposition by means of an electric resistance furnace 6 which may have a temperature of 1,000‹ C.- 1,400‹ C. and through which carbon dioxide is passed. Two or more coatings may be applied and the filament passed through additional fur. naces for drying the successive deposits. The solution is then applied by means of a wheel 9, the coating being dried by a furnace 11. A suitable suspension consists of one part by weight each of barium carbonate and strontium car, bonate and two parts of water, and a suitable solution consists of one part by weight each of barium nitrate and strontium nitrate with eighteen parts of water. A coating of soluble salts may be applied after each coating of non- soluble salts.
Patent GB-1425882-A (GB)
Title: Drying apparatus
IPC: F26B17/00
Filed: 1973-05-09
Abstract: 1425882 Drying particulate or fibrous materials A KLEIN 9 May 1973 [16 May 1972] 22145/73 Heading F4G Apparatus for drying materials such as fibrous or particulate material, for example plastic granules, comprises mixer-conveyer pipes 4, adjacent pipes being inclined to the horizontal in opposite directions, the inlet 7 of each pipe, other than the uppermost pipe, being situated below the outlet 6 of the pipe immediately above it and being connected thereto in vacuumtight manner, the external surfaces of the pipes being heated and at least two air looks 14, 15 provided through which the material is admitted connected in parallel to the inlet 7 of the uppermost pipe for operation alternately or cyclically. As shown, two inlet air locks 14, 15 are provided, the inlets 16 and outlets 18 of which have slide valves 17 and 19, respectively, for controlling the passage of material into the uppermost pipe. The material passes through the pipes either by vibrating the pipes with vibrators 5 or by rotary helices in the pipes and is discharged through airlocks 20, 21 controlled by slide valves 25, 27. The drying may take place under vacuum which may be refrigeration vacuum drying for which purpose vacuum pipes 9, 11 are provided connected to the pipes 4 and to a pump 13 by way of a condenser 12. Alternatively the drying may take place at subatmospheric pressure by means of heated air. Inert gases may be passed through a closed circuit including pipes 4, and a cooling condenser, the gases being cooled and reheated before being returned to the pipes. The pipes 4 are heated by means of electrical heating tapes or by heating pipes through which a heating medium such as water, steam or oil is passed. The pressures and temperatures of pipes 4 may be preselected in accordance with a timing programme.
Patent GB-818751-A (GB)
Title: Improvements in automatic train control
Inventor: CURREY JOHN HEYLYN
IPC: B61L3/12
Filed: 1953-08-12
Abstract: 818,751. Automatic train control equipment. BRITISH TRANSPORT COMMISSION. Dec. 22, 1955 [Aug. 12, 1953], No. 22230/53. Class 105. Train control equipment automatically operated in accordance with magnetic fields produced on the track when the equipment carrying vehicle passes over said fields includes a receiver containing one or more semi-conducting crystals capable of operating on the "Hall" effect principle to produce an electric current when suitably biased electrically and placed in a magnetic field, the said current produced as the result of the crystals passing through magnetic fields produced in the track being applied to operate audible and/or visual indicators and/or to effect a brake control. The crystals A and B e.g. of germanium, indium antimonide and silicon, in the receiver are magnetically polarised by a permanent magnetic field and when the receiver passes through a field on the track with opposite polarity, the voltages from both crystals A and B applied to amplifiers A, B respectively will be destroyed or reversed so that the amplifiers which receive bias voltages from each other will be made dead and will remain dead when the receiver voltages are restored. A leaky condenser circuit TDA keeps the later amplifying stages of amplifier A alive for two seconds and then the supply from amplifier A is cut off to provide caution indications or brake control. The amplifiers are restored by applying a bias voltage from the driver's reset handle. When the receiver passes through a track magnetic field of opposite polarity, i.e. of the same polarity as the permanent field biasing crystals A, B, crystal C produces a voltage which is applied to amplifier C to cause a resetting bias to be applied to amplifier A. Amplifier A then removes a stopper bias voltage from a later stage of amplifier C which then becomes fully alive for a time controlled by a leaky condenser circuit T.D.C. after the crystal C has passed out of the magnetic field, the output from amplifier C being fed to provide the clear indication. An alternative arrangement is described in which the operation of the cab equipment takes place after the receiver has passed through a magnetic field, the advantage being in this case that if the receiver came to a standstill in the magnetic field, the equipment can be reset if the field is set for a caution indication and the clear indication bell will not ring continuously if the field is set for a clear indication. The amplifiers may be crystals operating on the " Hall effect principle, transistors or magnetic amplifiers.
Patent GB-855400-A (GB)
Title: Improvements in or relating to roller or wheeled skates
IPC: B62M1/24
Filed: 1958-07-11
Abstract: 855,400. Roller skates. VANURA, E., and VANURA, C. July 11, 1958 [July 11, 1957], No. 22308/58. Classes 136(1) and 136(2). A roller skate comprises a frame structure mounted on a driving wheel 11 and two idler rollers 9, a pedal plate 13 rockably mounted in the frame structure 7 and connected to the wheel 11 by transmission means in such a manner that the wheel is driven through the transmission means by a rocking motion of the pedal plate. The transmission means comprises a pair of ratchet operated sprockets 21 mounted on the axle of the front driving wheel and transmission chains 20 passing over the sprockets 21 and connected by belts 17 to the front end of the pedal plate at 16. The pedal plate is provided with a bar 14 which is slidable in a slot 15 in the frame 7. A brake is provided on the rear axle 10 (Fig. 5) between the rollers 9 and is actuated manually by a bowden cable 32. The opposite end of the bowden cable 32 of each skate is connected to a manually controllable brake operating member (Fig. 6). Springs 35 are arranged in a frame 34 to hold the brake actuating grip bar 33 in the operative position.
Patent GB-716432-A (GB)
Title: Improvements in or relating to electrodes for photo-electric devices
Filed: 1951-09-24
Abstract: 716,432. Radiation sensitive devices. VOGT, A. Sept. 24, 1951 [Sept. 23, 1950], No. 22328/51. Class 40 (3). [Also in Group XXXVI] The invention of the parent Specification is a composite electrode for photo-electric devices in which a surface of a metal electrode arranged to face incident light carries a dielectric layer of such refractive index and thickness that for light of a frequency in the middle of a range of frequencies to be transmitted, reflections at the surface between air and the dielectric layer and at the surface between the dielectric layer and the electrode at least partially offset one another by interference, and the improvement or modification comprises a screen extending over the lightpermeable metal electrode and facing the incident light, the threads of the screen being good electrical conductors and conductively connected to the metal layer of said electrode. The thin light-permeable layer of gold, silver, copper or copper alloy carries a screen of the same or a different metal, and in the former case the electrode layer and screen may be formed as an integral unit with the intervening portions removed to form the transverse members of the screen. The composite electrode member, whether of the same or of different metals, may be produced by modifications of the process described in Specification 707,149, [Group II].
Patent GB-999559-A (GB)
Title: Copper alloy, and method of manufacturing the same
IPC: B22D21/02
Filed: 1962-06-08
Abstract: A product having fine equiaxed grains is produced by introducing a molten alloy of .Be.1.65-1.75% .Co.0.2-0.4% .Cu.the remainder, at a temperature of 1875  DEG F. into a heated die chamber, closing the chamber with a heated die plug and subjecting the molten alloy to a pressure of not less than 14000 p.s.i. for at least 3 minutes.  The alloy may include Fe and Ni such that Co + Fe + Ni = 0.25-0.65%.  The billet so formed may be extruded and/or may be solution annealed at 1500-1525 DEG F. for 3 hours, water quenched and aged at 650-675 DEG F. for 3 hours,
Patent GB-136789-A (GB)
Title: Improvements in Covers for Music, Books, Pamphlets or the like.
Inventor: PIENAS MOZES JACOB
IPC: B42D1/10
Filed: 1919-09-11
Abstract: 136,789. Pienas, M. J. Sept. 11, 1919. Covers.- Relates to covers for music, books, pamphlets, &c., and consists in providing the ordinary two-backed cover a of paper or the like with a gummed strip b along the interior of the middle fold, the strip being secured to the cover by w i r e staples c having extensions adapted to secure the contents to the cover. The gummed strip provides a strengthening-attachment for the exterior of the contents.
Patent GB-222478-A (GB)
Title: Improvements in pneumatic tyres
IPC: B60C5/02
Filed: 1924-09-23
Abstract: 222,478. Bugatti, E. Sept. 28, 1923, [Convention date]. Void [Published under Sect. 91 of the Act]. Air tubes and chambers.-A pneumatic tyre is fitted with two air tubes c, d inflated at relatively high and low pressures respectively. Fig. 1 shows a beaded-edge cover formed with a partition b separating the tubes. Fig. 3 shows a wired-on cover in which a separate liner or casing e is fitted between the tubes h, f.